Method: first I took the first ten pages from topic 1 (Algebra). Rather than use all ten pages, I decided to pick the ones that would be helpful for students needing help doing their algebra homework. The pages I picked were: http://archives.math.utk.edu/topics/algebra.html http://math.sierra.cc.ca.us/Algebra/algebra.htm http://matti.usu.edu/nlvm/enu/navd/topic_t_2.html http://mathforum.org/algebra/k12.algebra.html http://math.sierra.cc.ca.us/Algebra/AlgReview/algebrareview.htm I tried looking for backwards links on both Google and Altavista (both accept the "link:" followed by the URL (http:// and all) in the main search box). It seemed that in general Google included links from the same website (although it grouped them), while Altavista only listed pages external to the site. In terms of external links it seemed like Altavista found more, although that wasnt' always the case. I decided to take the union of both sets. Also, google sometimes hides some of the results, saying they're very similar, but I decided to include those files as well. Altavista is even more annoying, only listing one page from each site, so I had to select the "More Pages from " link as well. In order to ignore the sort order used by the two search engines and to make scoring the sites easier, I sorted the lists alphabetically. Also (and this is not very realistic) I observed any redirects used by the websites. Furthermore I ignored any broken links (also unrealistic). altavista Backwards links for http://archives.math.utk.edu/topics/algebra.html http://www.j4.com/Basic_Math/Algebra.htm http://www.j4.com/Pure_and_Applied_Math/Linear_Algebra.htm http://www.abc.se/~m9847/matre/algebra.html http://www.abc.se/~m9847/matre/archie.html http://www.tmcc.edu/att/competency.htm http://www.bhs-ms.org/mlalg2.htm http://www.bhs-ms.org/mlalg1.htm http://www.wtps.org/links/math.htm http://www.nv.cc.va.us/home/jhorn/mth060.htm http://www.nv.cc.va.us/home/jhorn/mth003.htm http://home.earthlink.net/~djbach/links.html http://www.eggplant.org/tools/links/ideas.html http://www.clifton.k12.nj.us/cliftonhs/chsmedia/chsmath.html http://dev.twu.edu/library/res/math.htm http://www.pgt.sreb.org/Links/index.asp http://www.homeworkelephant.co.uk/math-scilinks.shtml http://www.homeworkelephant.co.uk/math-algebra.shtml http://www.ecisd.org/tech/algebra.htm http://curry.edschool.virginia.edu/curry/class/edis/771/spring99webquests/prof/pjeffcrawford/home.htm http://education.otago.ac.nz/NZLNet/maths/algebra.html http://www.awesomelibrary.org/Classroom/Mathematics/Middle-High_School_Math/Algebra.html http://www.madison.tec.wi.us/mathinternet/ac_resrs.htm http://www.madison.tec.wi.us/mathinternet/ia_resrs.htm http://www.madison.tec.wi.us/is/ald/dwoolpert/addl_resources.htm http://dmsna.dms.unina.it/italiano/pages/servizi/1biblo.html http://www.clear2there.com/helps.html http://www.pen.k12.va.us/VDOE/Instruction/wmstds/hot.shtml http://www.nuatc.org/resources/weblinks/math/mathideasM_Z.html http://www2.gvsu.edu/~dyen/Welcome.html http://www.denveracademy.org/Prep/triglinks.htm http://students.ncwc.edu/emhouse/more%20web%20resources.htm http://webpages.shepherd.edu/skunyosy/intro.html http://dept.houstonisd.org/techinst/algebra/il.htm http://freeside.scsd.k12.ny.us/~hcaloi/interactive/indexL.html http://www.ldcsb.on.ca/schools/jp2/depts/math/math2.htm http://personal.redestb.es/mgmmat/links.htm http://math.smsu.edu/faculty/middleweb.html http://math.smsu.edu/faculty/highweb.html http://www.tc.cc.va.us/faculty/tctharm/links.htm http://www.j4.com/gnet/basic_math.html http://www.j4.com/gnet/computer-algebra.html http://www.j4.com/gnet/linear-algebra.html http://www.awesomelibrary.org/ http://www.hr/darko/mat/k12.html http://www.elmhurst.edu/~allenr/Courses/M121/link121.htm http://www.maths.kst.dit.ie/links4.htm http://www.lanet.lv/info/intermat/liga/tema.htm http://www.lanet.lv/info/intermat/liga/lalgeb.htm http://www.calvin.edu/academic/sas/asc004/mathelp/links.htm http://www.nisk.k12.ny.us/glencliff/Math.html http://www.stjohnshigh.com/math.htm http://www.tvdsb.on.ca/progmathsci/math/math_links.htm http://webtech.kennesaw.edu/jcheek4/algebra.htm http://www.internet4classrooms.com/math_sec.htm http://www.internet4classrooms.com/math_gen.htm http://www.nouvel.org/departments/math/links.htm http://www.memphis-schools.k12.tn.us/admin/tlapages/math_sec.htm http://www.memphis-schools.k12.tn.us/admin/tlapages/math_gen.htm http://www.cddoctor.com/tour/schmath.htm http://www.district87.org/staff/powelln/mathlinks/mlalg1.htm http://www.district87.org/staff/powelln/mathlinks/mlalg2.htm http://wwwpub.sinclair.edu/departments/tutorial/mathlinks.htm http://www.learningtrain.net/algebra_91.htm http://www.q-net.net.au/~buddrige/maths.html http://www.tact.fse.ulaval.ca/fr/html/sites/quebec/math/alge.htm http://www.mmrc.iss.ac.cn/~czhu/math/index.html http://occawlonline.pearsoned.com/bookbind/pubbooks/angel_awl/chapter1/custom4/deluxe-content.html http://www.jefferson.arlington.k12.va.us/~laepelba/mathematics.html http://www.clc.cc.il.us/home/eng502/ http://www.awesomelibrary.net/generic/Classroom/Mathematics/Middle-High_School_Math/Algebra.html google Backwards links for http://archives.math.utk.edu/topics/algebra.html http://www.bhs-ms.org/mlalg2.htm http://www.bhs-ms.org/mlalg1.htm http://www.tmcc.edu/att/competency.htm http://www.homeworkelephant.co.uk/math-scilinks.shtml http://www.homeworkelephant.co.uk/math-geometry.shtml http://www.homeworkelephant.co.uk/math-trig.shtml http://www.homeworkelephant.co.uk/math-algebra.shtml http://www.homeworkelephant.co.uk/math-calculus.shtml http://archives.math.utk.edu/k12.html http://archives.math.utk.edu/topics/ http://archives.math.utk.edu/whatsnew/nov01.html http://www.cut-the-knot.com/ReciprocalCol.html http://www.eggplant.org/tools/links/ideas.html http://www.awesomelibrary.org/Classroom/Mathematics/Middle-High_School_Math/Algebra.html http://lhs.lexingtonma.org/Dept/Math/students.html http://extend.hk.hi.cn/~zzm/resource.htm http://www.dms.unina.it/italiano/pages/servizi/1biblo.html http://www.abc.se/~m9847/matre/algebra.html http://www.abc.se/~m9847/matre/archie.html http://home.earthlink.net/~djbach/links.html http://www.astro.ugto.mx/~eenens/alg/links.html http://www.clc.cc.il.us/home/eng502/ http://instech.knox.k12tn.net/Math/KCMath/MathDepart.htm http://www.pgt.sreb.org/Links/index.asp http://www.openhere.com/science/mathematics/algebra/ http://curry.edschool.virginia.edu/go/edis771/spring99webquests/prof/pjeffcrawford/home.htm http://www.math.uiowa.edu/mathlab/llink.html http://lrc.tridenttech.org/new/Algebra.htm http://www.hr/darko/mat/k12.html altavista Backwards links for http://math.sierra.cc.ca.us/Algebra/algebra.htm http://archives.math.utk.edu/topics/algebra.html google Backwards links for http://math.sierra.cc.ca.us/Algebra/algebra.htm altavista Backwards links for http://matti.usu.edu/nlvm/enu/navd/topic_t_2.html http://archives.math.utk.edu/cgi-bin/interactive.html http://archives.math.utk.edu/topics/algebra.html http://www.linktolearning.com/patterning.htm http://www.svsu.edu/mathsci-center/Maser%20Math/genuse.html google Backwards links for http://matti.usu.edu/nlvm/enu/navd/topic_t_2.html http://www.matti.usu.edu/nlvm/enu/navd/topic_t_4.html http://www.matti.usu.edu/nlvm/enu/navd/purchaseinfo.html http://www.matti.usu.edu/nlvm/enu/navd/projectinfo.html http://www.matti.usu.edu/nlvm/enu/navd/credits.html http://www.matti.usu.edu/nlvm/enu/navd/topic_t_1.html http://www.matti.usu.edu/nlvm/enu/navd/topic_t_5.html http://www.matti.usu.edu/nlvm/enu/navd/contactinfo.html http://www.matti.usu.edu/nlvm/enu/navd/topic_t_3.html http://archives.math.utk.edu/cgi-bin/interactive.html http://archives.math.utk.edu/topics/algebra.html altavista Backwards links for http://mathforum.org/algebra/k12.algebra.html http://mathforum.org/algebra/k12.algebra.html http://mathforum.org/library/topics/basic_algebra/ google Backwards links for http://mathforum.org/algebra/k12.algebra.html (not in google's sort order) http://www.kcostv.org/mathlab.html http://www.targetmarketing.org/course/progproj.htm http://www.mtroskillint.school.nz/curriculum.html http://cesme.utm.edu/resources/framewks/alg.html http://cesme.utm.edu/Mathlinks/algebra.htm http://www.triangle-coalition.org/resources.htm http://www.stemnet.nf.ca/curriculum/math.shtml http://www.academicinfo.net/mathalgebra.html http://www.ieee.org/organizations/eab/precollege/peers/resources/prog.htm http://falcon.jmu.edu/~ramseyil/algebra.htm http://www.education-world.com/a_curr/curr147.shtml http://www.nhptv.org/kn/vs/mathla10.htm http://jan.ucc.nau.edu/~bpb3/mathed.html http://www.kn.pacbell.com/wired/fil/pages/listmathforge.html http://www.ced.appstate.edu/whs/goals2000/projects/algebrah.htm http://www.webkeys.com/highschoolhw.htm http://www.gis.net/~peacewp/math.htm http://www.geocities.com/CollegePark/Classroom/2927/MandS.htm http://www.spartanburg2.k12.sc.us/links/algebra.htm http://www.sholay.com/newkids/studies/main.htm http://www.mhhe.com/socscience/education/methods/resources.html http://www.abc.se/~m9847/matre/algebra.html http://www.saxakali.com/youth/math.htm http://teachone.tripod.com/think.html http://www.nanana.com/mathalgebra.html http://archives.math.utk.edu/topics/algebra.html http://www.webkeys.com/middlehw.htm whoops: http://www.kcostv.org/mathlab.html http://www.targetmarketing.org/course/progproj.htm http://www.mtroskillint.school.nz/curriculum.html http://cesme.utm.edu/resources/framewks/alg.html http://cesme.utm.edu/Mathlinks/algebra.htm http://www.triangle-coalition.org/resources.htm http://www.stemnet.nf.ca/curriculum/math.shtml http://www.academicinfo.net/mathalgebra.html http://www.ieee.org/organizations/eab/precollege/peers/resources/prog.htm http://falcon.jmu.edu/~ramseyil/algebra.htm http://www.education-world.com/a_curr/curr147.shtml http://www.nhptv.org/kn/vs/mathla10.htm http://jan.ucc.nau.edu/~bpb3/mathed.html http://www.kn.pacbell.com/wired/fil/pages/listmathforge.html http://www.ced.appstate.edu/whs/goals2000/projects/algebrah.htm http://www.webkeys.com/highschoolhw.htm http://www.webkeys.com/middlehw.htm http://www.gis.net/~peacewp/math.htm http://www.geocities.com/CollegePark/Classroom/2927/MandS.htm http://www.spartanburg2.k12.sc.us/links/algebra.htm http://www.sholay.com/newkids/studies/main.htm http://www.mhhe.com/socscience/education/methods/resources.html http://www.abc.se/~m9847/matre/algebra.html http://www.saxakali.com/youth/math.htm http://teachone.tripod.com/think.html http://www.nanana.com/mathalgebra.html http://www.webkeys.com/elementaryhw.htm http://archives.math.utk.edu/topics/algebra.html altavista Backwards links for http://math.sierra.cc.ca.us/Algebra/AlgReview/algebrareview.htm google Backwards links for http://math.sierra.cc.ca.us/Algebra/AlgReview/algebrareview.htm